Advanced concepts

Simons, S. A.; Schmitt, Joshua; Tom, Brittany; Bao, Huashan; Pettinato, Brian; Pechulis, Mark

doi:10.1016/b978-0-12-819892-6.00010-1

Cited by 8 publications

(4 citation statements)

References 34 publications

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“…The pursuit of climate neutrality is the main task of the large-scale implementation of renewable energy [ 1 ]. Since renewable energy is dependent on meteorological conditions, devices are needed to store and send the generated energy when needed [ 2 ]. Rechargeable lithium-ion batteries (LIBs) appear attractive due to their high energy density and good cycling stability.…”

Section: Introductionmentioning

confidence: 99%

“…For this reason, it is necessary to develop non-lithium energy storage technologies that can replace LIBs for large-scale applications. Although several forms of energy storage devices have been commercialized, the development of new ones that are more cost-effective and more sustainable than existing ones is imperative [ 1 , 2 ]. One of the most attractive alternatives among emerging technologies for large-scale energy storage is that of sodium-ion batteries (SIBs) [ 1 , 3 , 4 ].…”

Section: Introductionmentioning

confidence: 99%

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The Beneficial Impact of Mineral Content in Spent-Coffee-Ground-Derived Hard Carbon on Sodium-Ion Storage

Harizanova,

Uzunov,

Aleksandrov

et al. 2024

Materials

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The key technological implementation of sodium-ion batteries is converting biomass-derived hard carbons into effective anode materials. This becomes feasible if appropriate knowledge of the relations between the structure of carbonized biomass products, the mineral ash content in them, and Na storage properties is gained. In this study, we examine the simultaneous impact of the ash phase composition and carbon structure on the Na storage properties of hard carbons derived from spent coffee grounds (SCGs). The carbon structure is modified using the pre-carbonization of SCGs at 750 °C, followed by annealing at 1100 °C in an Ar atmosphere. Two variants of the pre-carbonization procedure are adopted: the pre-carbonization of SCGs in a fixed bed and CO2 flow. For the sake of comparison, the pre-carbonized products are chemically treated to remove the ash content. The Na storage performance of SCG-derived carbons is examined in model two and three Na-ion cells. It was found that ash-containing carbons outperformed the ash-free analogs with respect to cycling stability, Coulombic efficiency, and rate capability. The enhanced performance is explained in terms of the modification of the carbon surface by ash phases (mainly albite) and its interaction with the electrolyte, which is monitored by ex situ XPS.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Beneficial Impact of Mineral Content in Spent-Coffee-Ground-Derived Hard Carbon on Sodium-Ion Storage

Harizanova,

Uzunov,

Aleksandrov

et al. 2024

Materials

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“…Though the production of energy from reliable sources can be made possible, the search for proper energy storage systems remains a challenge . In the midst of traditionally available energy storage systems, supercapacitors sprang up as an alternative to batteries, considering the poor life cycle and feeble power density of batteries . Despite the fact that batteries have their unique applications, certain areas with the requirement of high-power density and longer life cycles make them inutile.…”

Section: Introductionmentioning

confidence: 99%

“… 1 In the midst of traditionally available energy storage systems, supercapacitors sprang up as an alternative to batteries, considering the poor life cycle and feeble power density of batteries. 2 Despite the fact that batteries have their unique applications, certain areas with the requirement of high-power density and longer life cycles make them inutile. On the other hand, supercapacitors can provide high power and undergo longer charging and discharging cycles.…”

Section: Introductionmentioning

confidence: 99%

Incorporation of α-MnO₂ Nanoflowers into Zinc-Terephthalate Metal–Organic Frameworks for High-Performance Asymmetric Supercapacitors

et al. 2023

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Herein, we report the synthesis of α-MnO 2 nanoflower-incorporated zinc-terephthalate MOFs (MnO 2 @Zn-MOFs) via the conventional solution phase synthesis technique as an electrode material for supercapacitor applications. The material was characterized by powder-X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and X-ray photoelectron spectroscopy techniques. The prepared electrode material exhibited a specific capacitance of 880.58 F g −1 at 5 A g −1 , which is higher than the pure Zn-BDC (610.83 F g −1 ) and pure α-MnO 2 (541.69 F g −1 ). Also, it showed a 94% capacitance retention of its initial value after 10,000 cycles at 10 A g −1 . The improved performance is attributed to the increased number of reactive sites and improved redox activity due to MnO 2 inclusion. Moreover, an asymmetric supercapacitor assembled using MnO 2 @Zn-MOF as the anode and carbon black as the cathode delivered a specific capacitance of 160 F g −1 at 3 A g −1 with a high energy density of 40.68 W h kg −1 at a power density of 20.24 kW kg −1 with an operating potential of 0−1.35 V. The ASC also exhibited a good cycle stability of 90% of its initial capacitance.

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Remote island renewable transition potential: Affordable, reliable and sustainable generation optimisation for Mornington island

Wang,

Song,

Huang

et al. 2024

Renewable and Sustainable Energy Transition

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Advanced concepts

Cited by 8 publications

References 34 publications

The Beneficial Impact of Mineral Content in Spent-Coffee-Ground-Derived Hard Carbon on Sodium-Ion Storage

The Beneficial Impact of Mineral Content in Spent-Coffee-Ground-Derived Hard Carbon on Sodium-Ion Storage

Incorporation of α-MnO₂ Nanoflowers into Zinc-Terephthalate Metal–Organic Frameworks for High-Performance Asymmetric Supercapacitors

Remote island renewable transition potential: Affordable, reliable and sustainable generation optimisation for Mornington island

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Advanced concepts

Cited by 8 publications

References 34 publications

The Beneficial Impact of Mineral Content in Spent-Coffee-Ground-Derived Hard Carbon on Sodium-Ion Storage

The Beneficial Impact of Mineral Content in Spent-Coffee-Ground-Derived Hard Carbon on Sodium-Ion Storage

Incorporation of α-MnO2 Nanoflowers into Zinc-Terephthalate Metal–Organic Frameworks for High-Performance Asymmetric Supercapacitors

Remote island renewable transition potential: Affordable, reliable and sustainable generation optimisation for Mornington island

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Product

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Incorporation of α-MnO₂ Nanoflowers into Zinc-Terephthalate Metal–Organic Frameworks for High-Performance Asymmetric Supercapacitors